Examine source code of Claude Chat Backup

{
  "manifest_version": 2,
  "name": "Claude Chat Backup",
  "version": "1.0",
  "description": "Backup all your Claude.ai conversations into a JSON file.",
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "activeTab",
    "downloads",
    "https://claude.ai/*"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4fac5d8f-d96d-4077-b72b-5b448a694863}"
    }
  }
}